Indian Journal of Medical Microbiology IAMM  | About us |  Subscription |  e-Alerts  | Feedback |  Login   
  Print this page Email this page   Small font sizeDefault font sizeIncrease font size
 Home | Ahead of Print | Current Issue | Archives | Search | Instructions  
Users Online: 3464 Official Publication of Indian Association of Medical Microbiologists 
 ~   Next article
 ~   Previous article
 ~   Table of Contents

 ~   Similar in PUBMED
 ~  Search Pubmed for
 ~  Search in Google Scholar for
 ~Related articles
 ~   Citation Manager
 ~   Access Statistics
 ~   Reader Comments
 ~   Email Alert *
 ~   Add to My List *
 * Requires registration (Free)

 Article Access Statistics
    PDF Downloaded176    
    Comments [Add]    

Recommend this journal


Year : 2015  |  Volume : 33  |  Issue : 5  |  Page : 80-86

Molecular characterization of Enterococcus spp. clinical isolates from Cairo, Egypt

1 Department of Microbiology and Immunology, Faculty of Pharmacy, Modern Sciences and Arts University, Giza, Egypt
2 Department of Microbiology and Immunology, Cairo University, Cairo, Egypt

Correspondence Address:
A S Yassin
Department of Microbiology and Immunology, Cairo University, Cairo
Login to access the Email id

Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0255-0857.148836

Rights and Permissions

Purpose: Enterococci are responsible for serious diseases such as bacteraemia, endocarditis and urinary tract infections. The ability of enterococci to cause such diseases is due to acquisition of certain virulence factors such as haemolysin, gelatinase and enterococcus surface protein. This study has been conducted to investigate the occurrence of virulence factors and resistance to various antibiotics with emphasis on vancomycin in the Enterococcus spp. Materials and Methods: Clinical specimens were collected and isolates were identified by proper microscopic, culture and biochemical tests. Susceptibility and degree of resistance of the isolates to various antibiotics were determined. Virulence factors were examined by phenotypic tests followed by molecular methods. Bioinformatics analysis was used to detect regions in the genomes that might have originated from horizontal gene transfer. Result: The presence or absence of virulence genes did not affect the pattern of antimicrobial resistance in Enterococcus isolates; consequently, no relationship was found between virulence factors and resistance to different antibiotics used. Bioinformatics analysis showed that the virulence genes were mainly transferred by transposons. Conclusion: Among the enterococci, environmental factors may interfere in the expression of virulence factors. Horizontal gene transfer plays an important role in the spread of resistance and virulence genes.


Print this article     Email this article

2004 - Indian Journal of Medical Microbiology
Published by Wolters Kluwer - Medknow

Online since April 2001, new site since 1st August '04